(Smooth Hand Control is a pure software product launched by Xiezhitong Information Technology Co., Ltd. dedicated to multi-screen interaction, display and control. It supports the display of documents, images, videos and other files on tablets or mobile phones on computers or large screens. On the device, it supports the user to directly control the desktop of the controlled device. This version is suitable for display devices such as PC, electronic whiteboard, advertising all-in-one machine, splicing large screen, etc. To obtain the mobile app, please log in to the official website suishoukong to download and install)